fix standard names for low/med/hgh cloud area fraction types

Author: AaronDonahue

components/eamxx/src/share/io/scream_io_utils.hpp

@@ -112,9 +112,9 @@ struct DefaultMetadata {
     {"aero_g_sw"                                                   , "asymmetry_factor_of_ambient_aerosol_particles"},
     {"pbl_height"                                                  , "atmosphere_boundary_layer_thickness"},
     {"precip_liq_surf_mass"                                        , "atmosphere_mass_content_of_liquid_precipitation"},
-    {"cldlow"                                                      , "cloud_area_fraction"},
-    {"cldmed"                                                      , "cloud_area_fraction"},
-    {"cldhgh"                                                      , "cloud_area_fraction"},
+    {"cldlow"                                                      , "low_type_cloud_area_fraction"},
+    {"cldmed"                                                      , "medium_type_cloud_area_fraction"},
+    {"cldhgh"                                                      , "high_type_cloud_area_fraction"},
     {"cldtot"                                                      , "cloud_area_fraction"},
     {"cldfrac_tot_at_cldtop"                                       , "cloud_area_fraction"},
     {"cldfrac_tot"                                                 , "cloud_area_fraction_in_atmosphere_layer"},